CN202789343U - Wind generating set flange - Google Patents
Wind generating set flange Download PDFInfo
- Publication number
- CN202789343U CN202789343U CN201220402919XU CN201220402919U CN202789343U CN 202789343 U CN202789343 U CN 202789343U CN 201220402919X U CN201220402919X U CN 201220402919XU CN 201220402919 U CN201220402919 U CN 201220402919U CN 202789343 U CN202789343 U CN 202789343U
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- flange
- rich paint
- zinc rich
- inorganic zinc
- wear
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- Expired - Lifetime
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- Y02E10/722—
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- Coating By Spraying Or Casting (AREA)
Abstract
The utility model discloses a wind generating set flange which comprises a flange body, wherein water inorganic zinc rich paint is sprayed on the surface of the flange body to form a wear-resistant protective coating after solidification, and the surface of the flange body requires sand blasting before spraying the water inorganic zinc rich paint. The utility model aims to provide the wind generating set flange taking the water inorganic zinc rich paint as the wear-resistant coating, and the water inorganic zinc rich paint sprayed on the surface of the flange body not only can satisfy a requirement for twenty-year anticorrosion service life of the wind generating set flange, but also can satisfy technical performance requirements for wear resistance and engaging force of mutually-connected flange surfaces.
Description
[technical field]
The utility model relates to anti-corrosion of metal protection field, refers more particularly to a kind of wind power generating set flange anti-corrosion protection.
[background technique]
In the metallic element assembly process of wind power generating set, component adopt high-strength bolt and flange to carry out assembly connection each other usually, yet the wind-powered electricity generation component flange contact facings with the high-strength bolt connection, need certain friction factor to increase the engaging force that flange is in contact with one another face, thereby the connection of guaranteeing the wind power generating set component is tight and mounting technology is realized, also guarantee the respective outer side edges of component, therefore need a kind of wear-resisting property technology and method that improves wind-powered electricity generation component flange contact facings.
Usually the wear-resisting measure that improves the flange surface of steel-iron components has: the one, behind flange contact facings shot-peening (sand), directly connect; The 2nd, spray again zinc (aluminium) coating at flange contact facings shot-peening (sand).The requirement of considering the residing severe environmental conditions of wind-powered electricity generation unit and guaranteeing anticorrosion 20 years life-spans of protection, just behind flanged surface shot-peening (sand), directly connect, although the surface of contact of flange possesses certain roughness, but its surface etching protection question is not solved at all, therefore, first method is infeasible in the method for flanged surface shot-peening (sand) only; The method that second method is carried out hot spray painted zinc (aluminium) at flanged surface is complex operation not only, and the factors such as qualification that are subject to easily shape, coating equipment and the operator of part flanged surface restrict, because the surface void rate of spray zinc layer is larger, aggressive medium infiltrates into easily the flanged surface of connection and produces corrosion, and obviously above-mentioned two kinds of methods that improve the wear resistance of flanged surface all are worthless.Because actual operation and the selectivity of these two kinds of methods are not strong, all have certain narrow limitation.For this reason, the applicant on the method basis of comprehensive analysis and experimental summary various raising metallic element wear resistance and anti-corrosive properties, has made the application's technology to solve the technological deficiency of prior art through long-term practice.
[model utility content]
The utility model is the performance requirement for the flange contact facings wear resistant coating of wind-powered electricity generation component, and has proposed a kind of wind power generating set flange of aqueous inorganic zinc rich paint as wear resistant coating, thereby realizes the reliable connection of wind-powered electricity generation component flanged surface.
A kind of wind power generating set flange comprises flange body, the wear-resistant protection coating that has the aqueous inorganic zinc rich paint to solidify to form on the flange body face, the wear-resistant protection coating thickness more than or equal to 70 μ m less than or equal to 90 μ m.Adopt the wear-resistant protection coating of spraying aqueous inorganic zinc rich paint for the wind power generating set flange; its curing mechanism as shown in the figure; this coating not only can be guaranteed anticorrosion life requirements in 20 years of wind power flange, and has technical property requirements such as satisfying the wear resistance interconnect flanged surface, engaging force.
The curing reaction mechanism schematic representation of aqueous inorganic zinc rich paint is as follows
Aqueous inorganic zinc rich paint and flange body base material as follows in conjunction with schematic representation
The utility model with respect to the beneficial effect of prior art is:
(1) friction factor is high: the flange friction factor of spraying aqueous inorganic zinc rich paint detects 〉=0.45 through experiment, can satisfy the wear-resisting property requirement that wind-powered electricity generation component flange connects.
(2) strong adhesion: the flange of spraying aqueous inorganic zinc rich paint, it adopts the aqueous inorganic zinc rich paint is also to form the zinc silicate iron complex with the iron and steel reaction in inorganic silicate and zinc powder reaction, as thus steel surface formed very strong chemical bond, because flange reaches certain roughness when surface treatment, when increasing paint film and surface area that flange contacts, can guarantee that also coating is with the close contact of flanged surface.This coating adhesion 〉=5MPa after measured.
(3) antiseptic property is excellent: the flange of spraying aqueous inorganic zinc rich paint; the aqueous inorganic zinc rich paint that it adopts has cathodic protection effect and self-healing properties; because aqueous inorganic zinc rich paint and steel substrate reaction generate the zinc silicate iron complex; form chemical bonds, thus the erosion of resisting better the aggressive mediums such as seawater, chloride.Its anticorrosion life-span is in reach 20 years under the marine atmosphere condition.
(4) good heat resistance: the wind-powered electricity generation unit is in running, and there is friction in the flange contact facings that high-strength bolt connects, may cause the rubbing surface local temperature to raise rapidly, and this just requires wear resistant coating to have certain resistance to heat.It is with polysiloxane (Si-O-Si) combine that the aqueous inorganic zinc rich paint is solidified to form cured film, the combination of Si-O key can be 445.2kJ/mol, it is much bigger to close energy (346.9kJ/mol) than organic polymer C-C bond, therefore the heat resistance after inorganic zincrich paint solidifies is more excellent, and its highest continuous temperature that can tolerate is 400 ℃.
[description of drawings]
The curing reaction mechanism schematic representation of Fig. 1, aqueous inorganic zinc rich paint.
Fig. 2, aqueous inorganic zinc rich paint and flange body base material in conjunction with schematic representation.
Fig. 3, wear resistant coating are at the structural representation of flange body face.
[embodiment]
A kind of wind power generating set flange comprises flange body 1, the wear-resistant protection coating 2 that has the aqueous inorganic zinc rich paint to solidify to form on 1 of the flange body.Wear-resistant protection coating 2 thickness more than or equal to 70 μ m less than or equal to 90 μ m.For example wear-resistant protection coating 2 thickness are 70 μ m, 80 μ m or 90 μ m.
The wear-resistant protection coating 2 of aqueous inorganic zinc rich paint (Interzinc697) forms chemical bond with flange body 1 steel surface in solidification process, its curing mechanism as shown in Figure 1,
Has technical property requirements such as satisfying the wear resistance interconnect flanged surface, engaging force.
Its technical characteristics is:
(1) friction factor is high: the flange friction factor of spraying aqueous inorganic zinc rich paint detects 〉=0.45 through experiment, can satisfy the wear-resisting property requirement that wind-powered electricity generation component flange connects.
(2) strong adhesion: as shown in Figure 2, aqueous inorganic zinc rich paint and flange body 1 base material in conjunction with schematic representation:
The wear-resistant protection coating 2 aqueous inorganic zinc rich paint that adopts is also to form the zinc silicate iron complex with the iron and steel reaction in inorganic silicate and zinc powder reaction; as thus steel surface formed very strong chemical bond; because flange reaches certain roughness when surface treatment; when increasing paint film and surface area that flange contacts, can guarantee that also coating is with the close contact of flanged surface.This coating adhesion 〉=5MPa after measured.
(3) antiseptic property is excellent: the aqueous inorganic zinc rich paint that wear-resistant protection coating 2 adopts has cathodic protection effect and self-healing properties; because aqueous inorganic zinc rich paint and steel substrate reaction generate the zinc silicate iron complex; form chemical bonds, thus the erosion of resisting better the aggressive mediums such as seawater, chloride.Its anticorrosion life-span can reach 20 years under the marine atmosphere condition.
(4) good heat resistance: the wind-powered electricity generation unit is in running, and there is friction in the flange contact facings that high-strength bolt connects, may cause the rubbing surface local temperature to raise rapidly, and this just requires wear-resistant protection coating 2 to have certain resistance to heat.It is with polysiloxane (Si-O-Si) combine that the aqueous inorganic zinc rich paint is solidified to form cured film, the combination of Si-O key can be 445.2kJ/mol, it is much bigger to close energy (346.9kJ/mol) than organic polymer C-C bond, therefore the heat resistance after inorganic zincrich paint solidifies is more excellent, and its highest continuous temperature that can tolerate is 400 ℃.
Wear-resistant protection coating 2 techniques begin front needs and carry out some preliminary preparations, and early-stage preparations are as follows:
(1) prepares material: be ready to base-material, the curing agent of inorganic zincrich paint, record lot number according to the construction process file.Check packing, if there is packages in damaged condition or leakage, then can not use or please just can use after the coating material production manufacturer's representative affirmation.To check whether the abnormalities such as gel, variable color are arranged when unpacking barrel, if any undesired, then do not use or please the coating material production manufacturer's representative confirm after just can use.
(2) cleaning equipment: because aqueous inorganic zinc rich paint (Interzinc697) aqueous inorganic zinc rich paint diluent free, fresh water available is cleaned coating tool, naturally dries or dries.
(3) allotment: the aqueous inorganic zinc rich paint (Interzinc697) of buying is two component packings from the market, and the A component is liquid, and the B component is zinc powder.During allotment, first the A component is stirred fully, by proportions of ingredients A:B=1:0.7(volume ratio) or the 1:4(weight ratio) B component (zinc powder) is slowly added in the A component (liquid), fully stir with stirrer.Attention never can be poured A component (liquid) in the B component (zinc powder) into when mixing, in order to avoid cause the zinc powder conglomeration.After the mixing and stirring, available 60-80 purpose filter screen filters rear use.
After early-stage preparations were finished, wear-resistant protection coating 2 spraying coating process were as follows:
(1) sand blast step is carried out sand blast to flange body 1 face component first, guarantees that coating fully contacts with flange body 1 steel surface.Requirement treats that flange body 1 surface treatment of application reaches Sa1/2 level among the ISO 12944-4, and surface roughness is the Rz40-75 micron.That the sand blasting-used sand material requires is dry, cleaning no-sundries, not chloride and grease.In order to guarantee the sandblast quality, keep relative moisture scope 40-60% in the workshop.After sand blast is finished, application aqueous inorganic zinc rich paint (Interzinc697) in the scheduled time interval;
(2) spraying aqueous inorganic zinc rich paint (Interzinc697): in workshop, adopt air spraying to construct, the nozzle that attentional selection is suitable keeps in the spraying process constantly stirring as far as possible, prevents the zinc powder precipitation.Attention must be finished (for example mixing service time 20 ℃ the time is 8 hours) within coating mixes service time, surpass mix service time after, can not re-use even paint vehicle is unchanged.
(3) allow the aqueous inorganic zinc rich paint namely form wear-resistant protection coating 2 in air set.Flange structure after finishing as shown in Figure 3.
In the spraying aqueous inorganic zinc rich paint process, Quality Control Technology is as follows:
In spraying aqueous inorganic zinc rich paint step, flange body 1 temperature is more than 10 ℃ and be higher than in the workshop 3 ℃ of dew point temperatures.
In spraying aqueous inorganic zinc rich paint step, relative air humidity scope 50-60% in the workshop.
Form in wear-resistant protection coating 2 steps in air set at the aqueous inorganic zinc rich paint, keeping suitably ventilating in the workshop is conducive to curing of coatings.
In spraying aqueous inorganic zinc rich paint process, in order to realize better atomizing, can in the aqueous inorganic zinc rich paint, add a small amount of purified water, weight ratio is controlled at below 3%.
For preventing zinc powder precipitation, in spraying aqueous inorganic zinc rich paint process, keep the aqueous inorganic zinc rich paint to be in by stirring constantly.
In spraying aqueous inorganic zinc rich paint process, adopt wet film finger monitoring spray-on coating thickness, thereby realize the control to wear-resistant protection coating 2 thickness.Adopt paintbrush to brush flat to prevent cracking for the place that the wet films such as weld seam may be blocked up.Range estimation has or not the defectives such as drain spray, sagging, dried spray, if any defectives such as drain spray, dried sprays, can again spray aqueous inorganic zinc rich paint (Interzinc697) according to actual conditions, to guarantee to reach quality requirement.
Above-described embodiment is the utility model preferred embodiment; but mode of execution of the present utility model is not subjected to the restriction of above-described embodiment; other any do not deviate from change, the decoration done under the utility model Spirit Essence and the principle, substitutes, combination or simplify the substitute mode that all should be equivalence, is included in the protection domain of the present utility model.
Claims (2)
1. a wind power generating set flange comprises flange body, it is characterized in that: the wear-resistant protection coating that has the aqueous inorganic zinc rich paint to solidify to form on the described flange body face.
2. described a kind of wind power generating set flange according to claim 1 is characterized in that: described wear-resistant protection coating thickness more than or equal to 70 μ m less than or equal to 90 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220402919XU CN202789343U (en) | 2012-08-14 | 2012-08-14 | Wind generating set flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220402919XU CN202789343U (en) | 2012-08-14 | 2012-08-14 | Wind generating set flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789343U true CN202789343U (en) | 2013-03-13 |
Family
ID=47816618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220402919XU Expired - Lifetime CN202789343U (en) | 2012-08-14 | 2012-08-14 | Wind generating set flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808744A (en) * | 2012-08-14 | 2012-12-05 | 广东明阳风电产业集团有限公司 | Wind generating set flange and wear-resistant coating technology of flange |
-
2012
- 2012-08-14 CN CN201220402919XU patent/CN202789343U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808744A (en) * | 2012-08-14 | 2012-12-05 | 广东明阳风电产业集团有限公司 | Wind generating set flange and wear-resistant coating technology of flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528437 Ming Yang Industrial Park, 22 Torch Road, Torch Development, Zhongshan, Guangdong Patentee after: MING YANG SMART ENERGY GROUP Co.,Ltd. Address before: 528437 Ming Yang Industrial Park, 22 Torch Road, Torch Development, Zhongshan, Guangdong Patentee before: GUANGDONG MINGYANG WIND POWER INDUSTRY GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |